baalstorm on "Dinamically generate custom post type title from category"

Hello,
I have a custom post type named "event", for which i disabled the title field.
This results in the post to be automatically named "Auto Draft" and the slug "auto-draft-x"

How can i automatically generate the title and the slug according to the post type name and the category set to the post when saving it?

Example:

event-live-1

(where "live" is the category)

There is the Auto Post Title plugin that does the trick for the title, but doesn't seem to affect the slug name.

Any help appreciated, thank you!